bjoernager/rust
bjoernager/rust
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By tracking import use types to check whether it is scope uses or the other situations like module-relative uses, we can do more accurate redundant import checking.

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fixes #117448

For example unnecessary imports in std::prelude that can be eliminated:

```rust
use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly
use std::option::Option::None; //~ WARNING the item `None` is imported redundantly
```
This commit is contained in:
surechen 2023-11-10 10:11:24 +08:00
parent d3df8ff851
commit a61126cef6
52 changed files with 283 additions and 167 deletions
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2
compiler/rustc_session/src/session.rs
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@ -22,7 +22,7 @@ use rustc_errors::emitter::{DynEmitter, HumanEmitter, HumanReadableErrorType};
use rustc_errors::json::JsonEmitter;
use rustc_errors::registry::Registry;
use rustc_errors::{
codes::*, fallback_fluent_bundle, DiagCtxt, DiagnosticBuilder, DiagnosticMessage, ErrCode,
codes::*, fallback_fluent_bundle, DiagCtxt, DiagnosticBuilder, DiagnosticMessage,
ErrorGuaranteed, FatalAbort, FluentBundle, IntoDiagnostic, LazyFallbackBundle, TerminalUrl,
};
use rustc_macros::HashStable_Generic;